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# Biological Geography Biological geography studies the phenomena and facts related to living beings, excluding humans. It examines plants, animals, and their distribution. It utilizes the following branches: * **1-Phytogeography:** Studies the distribution of plants on Earth's surface. * **2-Zoo...

# Biological Geography Biological geography studies the phenomena and facts related to living beings, excluding humans. It examines plants, animals, and their distribution. It utilizes the following branches: * **1-Phytogeography:** Studies the distribution of plants on Earth's surface. * **2-Zoogeography:** Studies the distribution of animals on Earth's surface. * **3-Edaphology:** Studies the distribution and characteristics of soils on Earth's surface. **Soil:** A mixture of inorganic substances, a product of rock disintegration, and organic substances, a product of plant and animal tissue decomposition. **Erosion:** Gravel, sand, silt, and clay.